台风“摩羯”路径转折预报和诊断分析
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于慧珍 1,2( ), 马艳 1,2( ), 韩旭卿 3, 时晓曚 1,2
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Forecast and diagnosis analysis of the turning of Typhoon Yagi track
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YU Huizhen 1,2( ), MA Yan 1,2( ), HAN Xuqing 3, SHI Xiaomeng 1,2
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图3. 2018年8月12日20:00至14日20:00逐6 h引导气流的大尺度分量(红色箭头,单位:m·s-1)、风暴尺度分量(蓝色箭头,单位:m·s-1)(a),8月14日02:00 850~300 hPa平均大尺度环流(风矢量,单位:m·s-1)、500 hPa位势高度场(黑色等值线,单位:gpm)(b) (黑色点线为2018年8月12日20:00至14日20:00逐6 h台风路径。下同)
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Fig.3. The large scale component (red arrows, Unit: m·s-1) and storm scale component (blue arrows, Unit: m·s-1) of the steering flow at 6 h interval from 20:00 BST 12 to 20:00 BST 14 August 2018 (a), the mean large scale flow during 850-300 hPa (wind vectors, Unit: m·s-1) and geopotential height field at 500 hPa (black contours, Unit: gpm) at 02:00 BST 14 August 2018 (b) (The black dots and line denotes typhoon track at 6 h interval from 20:00 BST 12 to 20:00 BST 14 August 2018. the same as below)
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